From bb8a9ce705f309a3b38d10c61c3865db79a0f71c Mon Sep 17 00:00:00 2001 From: Brian Date: Thu, 6 Nov 2008 19:24:47 -0700 Subject: gallium: implement TGSI_OPCODE_NRM/NRM4 in tgsi_exec.c --- src/gallium/auxiliary/tgsi/tgsi_exec.c | 59 +++++++++++++++++++++++++++++++++- 1 file changed, 58 insertions(+), 1 deletion(-) diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c index 53e92b96aee..41dffc3dbaf 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c @@ -2462,7 +2462,64 @@ exec_instruction( break; case TGSI_OPCODE_NRM: - assert (0); + /* 3-component vector normalize */ + { + union tgsi_exec_channel tmp, dot; + + /* tmp = dp3(src0, src0): */ + FETCH( &r[0], 0, CHAN_X ); + micro_mul( &tmp, &r[0], &r[0] ); + + FETCH( &r[1], 0, CHAN_Y ); + micro_mul( &dot, &r[1], &r[1] ); + micro_add( &tmp, &tmp, &dot ); + + FETCH( &r[2], 0, CHAN_Z ); + micro_mul( &dot, &r[2], &r[2] ); + micro_add( &tmp, &tmp, &dot ); + + /* tmp = 1 / tmp */ + micro_div( &tmp, &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C], &tmp ); + + /* note: w channel is undefined */ + FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) { + /* chan = chan * tmp */ + micro_mul( &r[chan_index], &tmp, &r[chan_index] ); + STORE( &r[chan_index], 0, chan_index ); + } + } + break; + + case TGSI_OPCODE_NRM4: + /* 4-component vector normalize */ + { + union tgsi_exec_channel tmp, dot; + + /* tmp = dp4(src0, src0): */ + FETCH( &r[0], 0, CHAN_X ); + micro_mul( &tmp, &r[0], &r[0] ); + + FETCH( &r[1], 0, CHAN_Y ); + micro_mul( &dot, &r[1], &r[1] ); + micro_add( &tmp, &tmp, &dot ); + + FETCH( &r[2], 0, CHAN_Z ); + micro_mul( &dot, &r[2], &r[2] ); + micro_add( &tmp, &tmp, &dot ); + + FETCH( &r[3], 0, CHAN_W ); + micro_mul( &dot, &r[3], &r[3] ); + micro_add( &tmp, &tmp, &dot ); + + /* tmp = 1 / tmp */ + micro_div( &tmp, &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C], &tmp ); + + FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) { + /* chan = chan * tmp */ + micro_mul( &r[chan_index], &tmp, &r[chan_index] ); + STORE( &r[chan_index], 0, chan_index ); + } + } break; case TGSI_OPCODE_DIV: -- cgit v1.2.3